Triangles

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Question

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Question 1 :

If ABC and DEF are similar triangles such that ∠A = 47^o and ∠ = 83^o, then ∠C = ?

1. 60^o
2. 70^o
3. 50^o
4. 80^o
Answer
14941

Question 2 :

In an isosceles triangle ABC, if AC = BC and AB² = 2AC², then ∠ C = ?

1. 50^o
2. 90^o
3. 40^o
4. 60^o
Answer
14942

Question 3 :

? ABC ~ ? DEF, area ( ? ABC) = 9 cm², area ( ? DEF) = 16 cm².  If BC = 2.1 cm, then measure of EF is

1. 4.2 cm
2. 2.5 cm
3. 2.8 cm
4. 4.1 cm
Answer
14943

Question 4 :

The length of the hypotenuse of an isosceles right triangle whose one side is 4√2 cm is:

1. 8 cm
2. 7 cm
3. 12 cm
4. 15 cm
Answer
14944

Question 5 :

A man goes 24 m due west and then 7 m due north. How far is he from the starting point?

1. 3 m
2. 25 m
3. 17 m
4. 26 m
Answer
14945